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  • Consider the reaction, . If the rate expression is <img alt="\

Consider the reaction, . If the rate expression is \mathrm{ r = [A]^{2}[B]^{0}} and if volume of the reaction vessel is halved, the rate of reaction will -

Option: 1

Increase by 8 times 


Option: 2

Increase by 4 times


Option: 3

Decrease by 4 times 


Option: 4

Remain unaffected


Answers (1)

best_answer

For a reaction, \mathrm{2 A+B \rightarrow C+D}
Rate of reaction \mathrm{=K[A]^2[B]^0} 
If volume is halved, concentration of reactants will double.
So revised rate of reaction \mathrm{ =K[2 A]^2[2 B]^0=2^2 \times K[A]^2[B]^0}
Hence, (2)

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Anam Khan

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